EP1047051A3 - Light emitting module and compatible optical pickup device adopting the same - Google Patents
Light emitting module and compatible optical pickup device adopting the same Download PDFInfo
- Publication number
- EP1047051A3 EP1047051A3 EP00303274A EP00303274A EP1047051A3 EP 1047051 A3 EP1047051 A3 EP 1047051A3 EP 00303274 A EP00303274 A EP 00303274A EP 00303274 A EP00303274 A EP 00303274A EP 1047051 A3 EP1047051 A3 EP 1047051A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- light sources
- emitting module
- light emitting
- light
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/127—Lasers; Multiple laser arrays
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1362—Mirrors
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
- G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0903—Multi-beam tracking systems
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
- G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Semiconductor Lasers (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990013806A KR20000066585A (en) | 1999-04-19 | 1999-04-19 | Light emitting module and compatible optical pickup apparatus employing it |
KR9913806 | 1999-04-19 | ||
KR9929279 | 1999-07-20 | ||
KR1019990029279A KR100585065B1 (en) | 1999-07-20 | 1999-07-20 | Light emitting module and compatible optical pickup apparatus employing it |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1047051A2 EP1047051A2 (en) | 2000-10-25 |
EP1047051A3 true EP1047051A3 (en) | 2001-01-24 |
Family
ID=26634963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00303274A Withdrawn EP1047051A3 (en) | 1999-04-19 | 2000-04-18 | Light emitting module and compatible optical pickup device adopting the same |
Country Status (4)
Country | Link |
---|---|
US (1) | US6587481B1 (en) |
EP (1) | EP1047051A3 (en) |
JP (2) | JP2000353332A (en) |
CN (2) | CN1302474C (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3662519B2 (en) | 2000-07-13 | 2005-06-22 | シャープ株式会社 | Optical pickup |
DE60110703T2 (en) * | 2000-08-09 | 2006-05-04 | Ricoh Co., Ltd. | Optical scanning device with an improved holographic unit and optical disk device containing it |
JP3979562B2 (en) * | 2000-09-22 | 2007-09-19 | パイオニア株式会社 | Optical pickup device |
JP2002100068A (en) | 2000-09-26 | 2002-04-05 | Pioneer Electronic Corp | Optical pickup device |
JP3844290B2 (en) | 2001-01-24 | 2006-11-08 | シャープ株式会社 | Hologram laser and optical pickup |
US7092345B2 (en) * | 2001-03-22 | 2006-08-15 | Ricoh Company, Ltd. | Optical module |
JP2003031885A (en) * | 2001-07-19 | 2003-01-31 | Toshiba Corp | Semiconductor laser device |
US20030147331A1 (en) * | 2002-02-07 | 2003-08-07 | G-Bond Optoelectronics, Inc. | Optical pickup diffracting one of two laser beams to a single detector |
JP4121285B2 (en) * | 2002-02-18 | 2008-07-23 | 株式会社リコー | Light source module, light source device, optical scanning device, and image forming apparatus |
DE60324859D1 (en) * | 2002-06-14 | 2009-01-08 | Samsung Electronics Co Ltd | A method of arranging a scanning optical system and an optical recording and / or reproducing apparatus with an optical scanning system arranged according to this method |
JP4111816B2 (en) * | 2002-12-19 | 2008-07-02 | シャープ株式会社 | Semiconductor laser device and optical pickup |
JP2004213766A (en) * | 2002-12-27 | 2004-07-29 | Toshiba Corp | Optical head and optical disk device |
KR100509490B1 (en) * | 2003-02-21 | 2005-08-22 | 삼성전자주식회사 | Optical pick-up apparatus and method for controlling phase of 3 beams |
KR100529313B1 (en) | 2003-04-30 | 2005-11-17 | 삼성전자주식회사 | Optical module and optical pickup employing it |
KR100529315B1 (en) | 2003-05-09 | 2005-11-17 | 삼성전자주식회사 | Light emitting module and optical pickup apparatus adopting the same |
DE10323857A1 (en) * | 2003-05-26 | 2005-01-27 | Osram Opto Semiconductors Gmbh | Housing for a laser diode device, laser diode device and method of manufacturing a laser diode device |
JP2005064430A (en) * | 2003-08-20 | 2005-03-10 | Toshiba Corp | Multiwavelength semiconductor laser |
WO2005043291A2 (en) * | 2003-10-09 | 2005-05-12 | Kearney Victor P | Automated financial transaction due diligence systems and methods |
US7808863B2 (en) * | 2004-04-26 | 2010-10-05 | Wai-Hon Lee | Laser/detector device for optical recording with adjustable detector position |
KR100683888B1 (en) | 2005-01-20 | 2007-02-15 | 삼성전자주식회사 | An optical pick-up apparatus |
JP4303273B2 (en) * | 2006-09-26 | 2009-07-29 | 株式会社日立メディアエレクトロニクス | Optical pickup |
JP2009266328A (en) * | 2008-04-28 | 2009-11-12 | Hitachi Media Electoronics Co Ltd | Optical pickup |
JP5324894B2 (en) * | 2008-11-21 | 2013-10-23 | パナソニック株式会社 | Semiconductor device and manufacturing method thereof |
US9551837B2 (en) * | 2011-11-01 | 2017-01-24 | Infineon Technologies Ag | Silicon optical line multiplexer devices |
CN109586160B (en) * | 2017-09-29 | 2020-10-30 | 光环科技股份有限公司 | High-speed vertical resonant cavity surface emitting laser packaging structure |
CN108490632B (en) * | 2018-03-12 | 2020-01-10 | Oppo广东移动通信有限公司 | Laser projection module, depth camera and electronic device |
FR3079623B1 (en) * | 2018-03-29 | 2022-04-08 | St Microelectronics Grenoble 2 | COVER FOR ELECTRONIC DEVICE AND METHOD OF MANUFACTURING |
KR102515833B1 (en) * | 2018-08-01 | 2023-03-29 | 삼성전자주식회사 | Apparatus and method for analyzing substance of object, and image sensor |
CN113196597B (en) * | 2018-12-17 | 2024-08-27 | ams国际有限公司 | Light module including enhanced eye safety features |
JP7121289B2 (en) * | 2019-02-05 | 2022-08-18 | 日本電信電話株式会社 | Wavelength selective optical receiver |
JP2021190463A (en) | 2020-05-26 | 2021-12-13 | 日亜化学工業株式会社 | Light-emitting device |
CN113410760A (en) * | 2021-06-16 | 2021-09-17 | 成都光创联科技有限公司 | Double-chip TO-CAN package |
CN115764536A (en) * | 2021-06-22 | 2023-03-07 | 青岛海信激光显示股份有限公司 | Laser device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5247167A (en) * | 1992-08-06 | 1993-09-21 | International Business Machines Corporation | Multiple beam power monitoring system and method with radiation detection and focusing means of overlapping beams |
EP0786836A2 (en) * | 1996-01-25 | 1997-07-30 | Hewlett-Packard Company | Laser-based light source |
EP0810589A2 (en) * | 1996-05-27 | 1997-12-03 | Sony Corporation | Optical pickup device with a plurality of laser couplers |
JPH10149559A (en) * | 1996-11-19 | 1998-06-02 | Sankyo Seiki Mfg Co Ltd | Laser beam emitting device |
JPH10172168A (en) * | 1996-12-06 | 1998-06-26 | Samsung Electron Co Ltd | Optical pickup device |
EP0973160A1 (en) * | 1998-07-17 | 2000-01-19 | Hoetron, Inc. | Wavelength sensitive beam combiner with aberration correction |
WO2000004614A1 (en) * | 1998-07-14 | 2000-01-27 | Sharp Kabushiki Kaisha | Semiconductor laser device |
Family Cites Families (24)
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JPH04199890A (en) * | 1990-11-29 | 1992-07-21 | Mitsubishi Electric Corp | Semiconductor laser device |
JPH05121838A (en) * | 1991-10-29 | 1993-05-18 | Nec Corp | Semiconductor laser chip carrier and polarized wave synthesis system |
JP2908652B2 (en) * | 1992-11-25 | 1999-06-21 | 株式会社リコー | Light scanning light source device |
KR940020325A (en) | 1993-02-08 | 1994-09-15 | 이헌조 | Optical pickup device |
US5598394A (en) * | 1994-05-19 | 1997-01-28 | Sanyo Electric Co., Ltd. | Optical pick-up |
CN1154541A (en) * | 1994-11-11 | 1997-07-16 | 大宇电子株式会社 | Optical pickup system for use with optical disk having multiple recording surfaces |
US5831952A (en) | 1995-07-27 | 1998-11-03 | Matsushita Electric Industrial Co., Ltd. | Optical disk thickness discriminating apparatus |
JP3476989B2 (en) | 1995-08-04 | 2003-12-10 | パイオニア株式会社 | Optical pickup |
US5742575A (en) | 1995-08-18 | 1998-04-21 | Sony Corporation | Method and device for identifying disc |
JPH09172225A (en) * | 1995-12-18 | 1997-06-30 | Canon Inc | Image recording light source |
JP4006032B2 (en) | 1995-12-28 | 2007-11-14 | 株式会社日立製作所 | Objective lens and optical head |
JP3691894B2 (en) | 1996-02-07 | 2005-09-07 | 株式会社東芝 | Optical disk device |
JPH1011795A (en) * | 1996-06-27 | 1998-01-16 | Kenwood Corp | Optical pickup |
JPH1055561A (en) * | 1996-08-08 | 1998-02-24 | Ricoh Co Ltd | Optical pickup device |
JP3112841B2 (en) * | 1996-08-27 | 2000-11-27 | 日本電気株式会社 | Optical pickup device |
TW307007B (en) | 1996-09-24 | 1997-06-01 | Ind Tech Res Inst | Digital video disc pick-up head |
TW350571U (en) | 1996-11-23 | 1999-01-11 | Ind Tech Res Inst | Optical grille form of optical read head in digital CD-ROM player |
JP3653923B2 (en) * | 1997-03-19 | 2005-06-02 | ソニー株式会社 | Recording / reproducing apparatus and method |
TW342493B (en) | 1997-04-29 | 1998-10-11 | Ind Tech Res Inst | Digital video disc (DVD) optical head with dual-wavelength laser |
JP3970380B2 (en) * | 1997-05-21 | 2007-09-05 | シャープ株式会社 | Semiconductor laser device |
TW346687B (en) * | 1997-09-15 | 1998-12-01 | Ind Tech Res Inst | Package of semiconductor laser diode and compact disk with two-wavelength read/write head |
JPH11296893A (en) * | 1998-04-14 | 1999-10-29 | Ricoh Co Ltd | Optical pickup |
JP2000012957A (en) * | 1998-06-22 | 2000-01-14 | Nec Corp | Multi-wavelength semiconductor laser module |
TW411454B (en) * | 1998-10-28 | 2000-11-11 | Ind Tech Res Inst | Optical read/write head for dual wavelength |
-
2000
- 2000-04-18 JP JP2000116992A patent/JP2000353332A/en active Pending
- 2000-04-18 EP EP00303274A patent/EP1047051A3/en not_active Withdrawn
- 2000-04-19 US US09/552,621 patent/US6587481B1/en not_active Expired - Lifetime
- 2000-04-19 CN CNB031306837A patent/CN1302474C/en not_active Expired - Fee Related
- 2000-04-19 CN CNB001192329A patent/CN1133994C/en not_active Expired - Fee Related
-
2001
- 2001-09-19 JP JP2001285530A patent/JP2002175642A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5247167A (en) * | 1992-08-06 | 1993-09-21 | International Business Machines Corporation | Multiple beam power monitoring system and method with radiation detection and focusing means of overlapping beams |
EP0786836A2 (en) * | 1996-01-25 | 1997-07-30 | Hewlett-Packard Company | Laser-based light source |
EP0810589A2 (en) * | 1996-05-27 | 1997-12-03 | Sony Corporation | Optical pickup device with a plurality of laser couplers |
JPH10149559A (en) * | 1996-11-19 | 1998-06-02 | Sankyo Seiki Mfg Co Ltd | Laser beam emitting device |
US5978404A (en) * | 1996-11-19 | 1999-11-02 | Sankyo Seiki Mfg. Co., Ltd. | Laser beam emission apparatus |
JPH10172168A (en) * | 1996-12-06 | 1998-06-26 | Samsung Electron Co Ltd | Optical pickup device |
US5995476A (en) * | 1996-12-06 | 1999-11-30 | Samsung Electronics Co., Ltd. | Optical pick-up apparatus |
WO2000004614A1 (en) * | 1998-07-14 | 2000-01-27 | Sharp Kabushiki Kaisha | Semiconductor laser device |
EP0973160A1 (en) * | 1998-07-17 | 2000-01-19 | Hoetron, Inc. | Wavelength sensitive beam combiner with aberration correction |
Also Published As
Publication number | Publication date |
---|---|
CN1273415A (en) | 2000-11-15 |
CN1133994C (en) | 2004-01-07 |
US6587481B1 (en) | 2003-07-01 |
JP2002175642A (en) | 2002-06-21 |
JP2000353332A (en) | 2000-12-19 |
EP1047051A2 (en) | 2000-10-25 |
CN1302474C (en) | 2007-02-28 |
CN1516137A (en) | 2004-07-28 |
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